src/mesa/state_tracker/st_cb_program.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28  /*
  29   * Authors:
  30   *   Keith Whitwell <keithw@vmware.com>
  31   */
  32
  33 #include "main/glheader.h"
  34 #include "main/macros.h"
  35 #include "main/enums.h"
  36 #include "main/shaderapi.h"
  37 #include "program/prog_instruction.h"
  38 #include "program/program.h"
  39
  40 #include "cso_cache/cso_context.h"
  41 #include "draw/draw_context.h"
  42
  43 #include "st_context.h"
  44 #include "st_debug.h"
  45 #include "st_program.h"
  46 #include "st_mesa_to_tgsi.h"
  47 #include "st_cb_program.h"
  48 #include "st_glsl_to_ir.h"
  49 #include "st_atifs_to_tgsi.h"
  50 #include "st_util.h"
  51
  52
  53 /**
  54  * Called via ctx->Driver.NewProgram() to allocate a new vertex or
  55  * fragment program.
  56  */
  57 static struct gl_program *
  58 st_new_program(struct gl_context *ctx, gl_shader_stage stage, GLuint id,
  59                bool is_arb_asm)
  60 {
  61    struct st_program *prog;
  62
  63    switch (stage) {
  64    case MESA_SHADER_VERTEX:
  65       prog = (struct st_program*)rzalloc(NULL, struct st_vertex_program);
  66       break;
  67    default:
  68       prog = rzalloc(NULL, struct st_program);
  69       break;
  70    }
  71
  72    return _mesa_init_gl_program(&prog->Base, stage, id, is_arb_asm);
  73 }
  74
  75
  76 /**
  77  * Called via ctx->Driver.DeleteProgram()
  78  */
  79 static void
  80 st_delete_program(struct gl_context *ctx, struct gl_program *prog)
  81 {
  82    struct st_context *st = st_context(ctx);
  83    struct st_program *stp = st_program(prog);
  84
  85    st_release_variants(st, stp);
  86
  87    if (stp->glsl_to_tgsi)
  88       free_glsl_to_tgsi_visitor(stp->glsl_to_tgsi);
  89
  90    free(stp->serialized_nir);
  91
  92    /* delete base class */
  93    _mesa_delete_program( ctx, prog );
  94 }
  95
  96 /**
  97  * Called via ctx->Driver.ProgramStringNotify()
  98  * Called when the program's text/code is changed.  We have to free
  99  * all shader variants and corresponding gallium shaders when this happens.
 100  */
 101 static GLboolean
 102 st_program_string_notify( struct gl_context *ctx,
 103                                            GLenum target,
 104                                            struct gl_program *prog )
 105 {
 106    struct st_context *st = st_context(ctx);
 107    struct st_program *stp = (struct st_program *) prog;
 108
 109    /* GLSL-to-NIR should not end up here. */
 110    assert(!stp->shader_program);
 111
 112    st_release_variants(st, stp);
 113
 114    if (target == GL_FRAGMENT_PROGRAM_ARB ||
 115        target == GL_FRAGMENT_SHADER_ATI) {
 116       if (target == GL_FRAGMENT_SHADER_ATI) {
 117          assert(stp->ati_fs);
 118          assert(stp->ati_fs->Program == prog);
 119
 120          st_init_atifs_prog(ctx, prog);
 121       }
 122
 123       if (!st_translate_fragment_program(st, stp))
 124          return false;
 125    } else if (target == GL_VERTEX_PROGRAM_ARB) {
 126       if (!st_translate_vertex_program(st, stp))
 127          return false;
 128    } else {
 129       if (!st_translate_common_program(st, stp))
 130          return false;
 131    }
 132
 133    st_finalize_program(st, prog);
 134    return GL_TRUE;
 135 }
 136
 137 /**
 138  * Called via ctx->Driver.NewATIfs()
 139  * Called in glEndFragmentShaderATI()
 140  */
 141 static struct gl_program *
 142 st_new_ati_fs(struct gl_context *ctx, struct ati_fragment_shader *curProg)
 143 {
 144    struct gl_program *prog = ctx->Driver.NewProgram(ctx, MESA_SHADER_FRAGMENT,
 145          curProg->Id, true);
 146    struct st_program *stfp = (struct st_program *)prog;
 147    stfp->ati_fs = curProg;
 148    return prog;
 149 }
 150
 151 static void
 152 st_max_shader_compiler_threads(struct gl_context *ctx, unsigned count)
 153 {
 154    struct pipe_screen *screen = st_context(ctx)->pipe->screen;
 155
 156    if (screen->set_max_shader_compiler_threads)
 157       screen->set_max_shader_compiler_threads(screen, count);
 158 }
 159
 160 static bool
 161 st_get_shader_program_completion_status(struct gl_context *ctx,
 162                                         struct gl_shader_program *shprog)
 163 {
 164    struct pipe_screen *screen = st_context(ctx)->pipe->screen;
 165
 166    if (!screen->is_parallel_shader_compilation_finished)
 167       return true;
 168
 169    for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
 170       struct gl_linked_shader *linked = shprog->_LinkedShaders[i];
 171       void *sh = NULL;
 172
 173       if (!linked || !linked->Program)
 174          continue;
 175
 176       if (st_program(linked->Program)->variants)
 177          sh = st_program(linked->Program)->variants->driver_shader;
 178
 179       unsigned type = pipe_shader_type_from_mesa(i);
 180
 181       if (sh &&
 182           !screen->is_parallel_shader_compilation_finished(screen, sh, type))
 183          return false;
 184    }
 185    return true;
 186 }
 187
 188 /**
 189  * Plug in the program and shader-related device driver functions.
 190  */
 191 void
 192 st_init_program_functions(struct dd_function_table *functions)
 193 {
 194    functions->NewProgram = st_new_program;
 195    functions->DeleteProgram = st_delete_program;
 196    functions->ProgramStringNotify = st_program_string_notify;
 197    functions->NewATIfs = st_new_ati_fs;
 198    functions->LinkShader = st_link_shader;
 199    functions->SetMaxShaderCompilerThreads = st_max_shader_compiler_threads;
 200    functions->GetShaderProgramCompletionStatus =
 201       st_get_shader_program_completion_status;
 202 }